ITU Spectrum Management System for Developing Countries (SMS4DC) Saman Jalayerian BR/TSD/TPR

Transcription

1 ITU Spectrum Management System for Developing Countries (SMS4DC) Saman Jalayerian BR/TSD/TPR 1

2 ITU Spectrum Management System for Developing Countries (SMS4DC) SMS4DC is software designed by ITU based on ITU recommendations Developed to assist the administrations of developing countries to undertake their spectrum management responsibilities more effectively; SMS4DC covers terrestrial fixed, mobile, sound and television broadcasting services in the bands above 30 MHz, including GE-06 as well as frequency coordination of Earth stations

3 Computer aided spectrum management The use of computers in the spectrum management process has become crucial for most administrations that are faced with the ever-increasing use of the radio frequencies. Several aspects of this process, such as frequency coordination, administrative procedures (registration and issuing of licenses) and notifications of assignments to the ITU according to the Radio Regulations, are crucial in the establishment of a computer-automated process. ITU-R Handbook: Computer-aided Techniques for Spectrum Management (CAT) (2015, New) 3

4 System architecture ITU Tools and Databases Network Monitoring System Spectrum Management System Technical modules Monitoring Database Data processing modules Geographical Information System Spectrum Management Database Digital Maps (e.g. Digital Elevation Model)

5 SMS4DC Development Cycle 2007: SMS4DC Version : SMS4DC Version 2.0 (Addition of Digital TV planning tools (GE06)) 2009: SMS4DC Version 3.0 (Addition of Google Earth and interface to ARGUS monitoring software of Rohde & Schwarz ) 2012: SMS4DC Version 4.0 (Addition of French language and link to ESMERALDA monitoring software of Thales and additional enhancements 2014: SMS4DC Version 4.1 (Update of Article 5 according to WRC12, import from new BRIFIC & interface with appendix 7) 2015: SMS4DC Version 5.0 (Addition of Spanish language and revised propagation models based on the latest version of P.452, P.530 and P. 1812, P.1546).

6 MAPS Structure of the SMS4DC BR IFIC SRS External Database Interface to the externaldatabases InternalDatabase Technical& Administrative Modules LIBRARIES SMS4DC software Interface to the externalresources Monitoring Systems IDWM RR App.7 External Resources and Applications 7

7 Functions of SMS4DC Administrative Functions Graphical User Interface (GIS) Functions (including Map Displays) Engineering Analysis Functions

8 Administrative Functions of SMS4DC Comprehensive database (MS Access) of user/license details, with data fields in accordance with ITU recommendations; Provides complete process from: frequency application, frequency assignment, licensing, ITU plans and Bilateral frequency coordination procedures; Imports coordination data from ITU BRIFIC & SRS CD-ROM database; Producing electronic notices, print license, invoice & spectrum fee Security features: The designated system administrator can define an individual account for each SMS4DC user up to 6 levels of access to the different processes (e.g. licensing, assignment etc). Each user account is named and password protected.

9 SMS4DC Configuration

10 SMS4DC License Database GUI Easy generation of customizable reports for Licenses and their status

11 GIS Functions of SMS4DC User friendly interface with text menus and icon-tool bars; Display views International Digital World Map (IDWM) Digital Elevation Map (DEM) (2-D and 3-D) Data entry/assigning of new stations on DEM by mouse pointand-click Export of maps, overlays and vectors to Google Earth Searching and displaying stations on DEM

12 GIS Functions of SMS4DC IDWM Menu: The IDWM is used to draw political boundaries of countries on the desktop of SMS4DC

13 GIS Functions of SMS4DC Digital Elevation Model (DEM) Menu

14 GIS Functions of SMS4DC Digital Elevation Model (DEM) 2D and 3D views Map Display in 3D Based on the Global Land One- kilometer Base Elevation model (GLOBE)

15 GIS Functions of SMS4DC Export of maps, overlays and vectors to Google Earth Searching and displaying stations on DEM)

16 SMS4DC s Engineering Functions International & National frequency allocations table (chart)

17 SMS4DC s Engineering Functions Frequency arrangement (Homogeneous)

18 SMS4DC s Engineering Functions Frequency assignment parameters & EMC analysis results

19 Engineering Analysis Functions of SMS4DC Enhanced analysis tools to assist a spectrum engineer in frequency assignment, national and international frequency coordination and interference calculation for the Land Mobile, Fixed and Broadcast services and satellite Earth Station coordination; New Radio station parameters in-line with ITU coordination requirements

20 Engineering Analysis Functions of SMS4DC Calculation of coverage area, field strength, field strength contour, network coverage and best server calculations Coverage area Item to calculate area in km2 Where inside the area, the field strength value is higher than a threshold value. Maximum Field Strength Item to calculate and visualize the maximum values produced by more than one transmitting stations at any point inside a predefined rectangular area. Best Server Item to calculate and visualize the best serving station at each point among various stations inside a predefined rectangular area.

21 Engineering Analysis Functions of SMS4DC For fixed service (point-to-point radio links): Link budget calculations Link availability Path profiles Fresnel zone clearance Fresnel Zone: Measure for multipath effect Mostly used for Aperture antenna Number of zone each one represents degree of out phase reflect signal from the LOS signal First Fresnel Zone includes 90% of radiation pattern (LOS component).

22 Broadcasting services Co-ordination includes interference analysis and frequency coordination tools between Broadcasting Services and between Broadcasting Services and some of the other services (Fixed and Land Mobile only) sharing the frequency bands in the ST61, GE84, GE89, and GE06 Agreements. Interference analysis methods are in conformity with the relevant requirements of the Agreements 23

23 GE-06 (Broadcasting) GE06 Agreement FXLM2BCBT (Affected Admin) Identification of Administrations whose broadcasting service is likely (potentially) to be affected by a wanted station in fixed or land mobile service inside another country. Right-hand screenshot shows the coordination contour for the wanted FX station crossing the border of an administration whose broadcasting service is likely to be affected. Lefthand screenshot shows this result exported to Google Earth. 24

24 Example for the Land Mobile service The example shows a cross border coordination agreement for the band MHz among three administrations. Three sub-bands are established, one for each country, giving preferential assignment rights. The limits of the preferential rights are 20 dbuv/m measured at 15 km across the border. For coordination of receivers, a reference transmitter with e.r.p. of 17 dbw is used. 25

25 Coordination contours around an Earth station 26

26 SMS4DC s Engineering Functions SMS4DC and monitoring software interface

27 SMS4DC s Engineering Functions SMS4DC and monitoring software interface Monitoring request to SMS4DC 1 Outbox 2 MONITORING SOFTWARE Results 4 Inbox 3

28 SMS4DC s Engineering Functions SMS4DC and monitoring software interface SMS4DC order to monitoring 1 Inbox Order(s) 2 Results MONITORING SOFTWARE 4 Outbox 3

29 For further reading: ITU Handbook - Computer-Aided Techniques for Spectrum Management (CAT), 2015 ITU Handbook on National Spectrum Management, 2015 SMS4DC 5.0 User Guide ITU Handbook on Spectrum Monitoring, 2011 Recommendation ITU-R SM.1370 Recommendation ITU-R SM.1537 Recommendation ITU-R SM.1604

30 Thank you! 31